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Semmy [17]
3 years ago
7

Which set of statements explains how to plot a point at the location (-2.5,3.75)?

Mathematics
2 answers:
Brums [2.3K]3 years ago
4 0

Answer:

a is right

Step-by-step explanation:

Mekhanik [1.2K]3 years ago
3 0

Answer:b

Step-by-step explanation:

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What is cos(45°)?
Andrej [43]

Answer:

\rm \dfrac{\sqrt2}{2}

Step-by-step explanation:

A right angled ∆ is given to us and we need to find out the value of cos 45° ( with rationalized denominator ) . As we know that in a right angle ∆ , the value of cosine is ,

\rm\implies cos\theta =\dfrac{base}{hypotenuse}

In the given triangle ,

  • Value of base = 1
  • Value of hypotenuse = √2

On substituting the respective values ,

\rm\implies cos45^\circ =\dfrac{1}{\sqrt2}

For rationalizing the denominator , multiply numerator and denominator by √2 , we have,

\rm\implies cos45^\circ=\dfrac{1(\sqrt2)}{(\sqrt2)(\sqrt2)}

Simplify ,

\rm\implies \boxed{\pink{\frak{ cos45^\circ=\dfrac{\sqrt2}{2} }}}

6 0
3 years ago
The cable television company reduced taxes 20% last year. If the original service cost $20.50 what is the new cost
blondinia [14]
.2 * 20.50 = 4.1

20.50 + 4.1 = $24.60
5 0
3 years ago
(1) What are the zeros of the graph below?
Kitty [74]
Jeez don’t know what to say don’t understand
6 0
3 years ago
At a college bookstore, Tanisha bought a Math Textbook and a Novel for $54. If the price of the Math Textbook is $8 more than 3
pishuonlain [190]

Answer: Price of Math Textbook= $42.5,  Price of the Novel= $11.5

Step-by-step explanation:

Let x = price of the Novel.

Price of Math Textbook = 8+3x

As per given , we have

Price of Math Textbook + Price of the Novel = $54

⇒ 8+3x+x = 54

⇒ 8+4x=54

⇒ 4x = 46     [subtract 8 from both sides]

⇒ x = 11.5

Price of Math Textbook = 8+3(11.5) = 8+34.5= $42.5

Hence, Price of Math Textbook= $42.5,  Price of the Novel= $11.5

3 0
3 years ago
Which information is not necessary to solve this problem? WHO EVER GETS THIS FIRST IS BRAINLIEST
Ad libitum [116K]
So we need to now how many crates they sold, how many boxes are in a crate, and how much they sold the cates for. 

So we don't need A. we don't need to know how much is in the box, just how much money they made from the box.
4 0
3 years ago
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